DeePsea

DeePsea (formerly DeeP97) is a level editor and WAD resource manager for Doom engine games. It has full support for Doom, Doom II, Heretic, Hexen, Strife and any source port via custom configuration files. 3D texture alignment uses a variant of the Risen3D GL port, R3Dedit. Since R3Dedit is based on Risen3D, it is able to provide a view of a level with normal skies, as well as optionally showing the placement of all sprites. R3Dedit has been replaced with a new interface called R3DeeP as of version 13.0.5.

It was developed by Jack Vermeulen and Brad Kiefer, and was originally a shareware application sold commercially by Sensor Based Systems, Inc. before being made free in 2018. For the unregistered version, there was no time limit, but the maximum size of levels a user could create was limited to 800 linedefs or 1200 sidedefs. DeePsea stalled in development for slightly over 11 years until January 25, 2023, with the release of version 13.0.5.

Features
All PWAD tools are unlimited in the shareware version.
 * Map editor with 3D texture alignment (supports both line drawing or sector drawing)
 * Level error checking
 * Lump management tools
 * Create PWADS and IWADS
 * Import/Merge/Export any file (including WADS) with duplicate error checking
 * Direct picture format image editor, with support for tall patches
 * Texture editor
 * Palette editor
 * Colormap editor
 * Script editor and compiler
 * Sound and music playback
 * Automatic regular or GL node generation using DeePBSP
 * Automatic list of all textures used in a level or PWAD
 * Open dialog browser shows the contents of WADS without having to open them
 * Show detailed level statistics
 * A new 3D editing interface called R3DeeP as of version 13.0.5

In addition, pressing the F7 key allows the user to access almost every feature within the program.

As DeeP97

 * v9.00 was released on December 13, 1996. It is the first release of DeeP97.
 * v9.01a was released on December 21, 1996.
 * v9.01c was released on December 25, 1996.
 * v9.10 was released on March 22, 1997.
 * v9.20 and v9.25 were released on April 19, 1997.
 * v9.30 was released on May 31, 1997.
 * v9.40 was released on June 27, 1997.
 * v9.40a was released on July 4, 1997.
 * v9.50 was released on July 28, 1997.
 * v9.51 and v9.60 were released on September 19, 1997.
 * v9.61 was released on October 1, 1997.
 * v9.62 was released on October 24, 1997.
 * v9.63 was released on January 8, 1998.
 * v9.70, v9,71+, and v9.72+ were released on April 10, 1998.
 * v9.73 was released on April 20, 1998.
 * v9.74 was released on May 29, 1998.
 * v9.75 was released on September 15, 1998.
 * v9.76 was released on November 1, 1998.
 * v9.77 was released on November 4, 1998.
 * v9.78 was released on December 13, 1998.
 * v9.79 was released on December 13, 1999.
 * v9.79b was released on December 21, 1999.
 * v9.79c was released on December 29, 1999.

As DeePsea

 * v10.0 was released on February 22, 2000. In this release, DeeP97 has been renamed to DeePsea.
 * v10.01 was released on February 29, 2000.
 * v10.10 was released on March 7, 2000.
 * v10.11 was released on March 8, 2000.
 * v10.20 was released on May 7, 2000.
 * v10.20e was released on November 29, 2000.
 * v10.21 was released on January 30, 2001.
 * v11.01 was released on May 1, 2001.
 * v11.1 was released on June 10, 2001.
 * v11.2 was released on August 25, 2001.
 * v11.3 was released on October 12, 2001.
 * v11.41 was released on December 16, 2001.
 * v11.5+ was released on January 12, 2002.
 * v11.55+ was released on January 29, 2002.
 * v11.56 was released on February 4, 2002.
 * v11.65 was released on July 27, 2002.
 * v11.66
 * v11.7 was released on January 21, 2003.
 * v11.71 was released on January 22, 2003.
 * v11.72 was released on January 25, 2003.
 * v11.75 was released on March 16, 2003.
 * v11.8 was released on August 4, 2003.
 * v11.82a was released on September 10, 2003.
 * v11.83 was released on December 12, 2003.
 * v11.9 was released on April 24, 2004.
 * v12.01 was released on December 13, 2004.
 * v12.02 was released on January 12, 2005.
 * v12.03 was released on February 22, 2005.
 * v12.05/12.04 was released on March 23, 2005.
 * v12.06 was released on April 11, 2005.
 * v12.12 was released on November 30, 2005.
 * v12.13-12.14 was released on June 7, 2010.
 * v12.15 was released on July 16, 2010.
 * v12.15.2 was released on April 11, 2011.
 * v13.0.5 was released on January 25, 2023.